Results 71 to 80 of about 1,599,471 (300)

Adaptive weighting impact angle optimal guidance law considering seeker’s FOV angle constraints

Journal of Systems Engineering and Electronics, 2018
In this paper, a new adaptive optimal guidance law with impact angle and seeker's field-of-view (FOV) angle constraints is proposed. To this end, the generalized optimal guidance law is derived first. A changeable impact angle weighting (IAW) coefficient is introduced and used to modify the guidance law to make it adaptive for all guidance constraints.
Ran LI, Qiuqiu WEN, Wangchun TAN, Yijie ZHANG   +3 more
openaire   +1 more source

ALS With and Without Upper Motor Neuron Signs: A Comparative Study Supporting the Gold Coast Criteria

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The Gold Coast criteria permit diagnosis of amyotrophic lateral sclerosis (ALS) even without upper motor neuron (UMN) signs. However, whether ALS patients with UMN signs (ALSwUMN) and those without (ALSwoUMN) share similar characteristics and prognoses remains unclear.
Hee‐Jae Jung, E‐nae Cheong, Jungmin So, Heung‐Won Kang, Yangsean Choi, Eun‐Jae Lee, Hyunjin Kim, Young‐Min Lim   +7 more
wiley   +1 more source

Optimal Look-Angle Guidance with Field-of-View and Impact Angle Constraints for Strapdown Munition

International Journal of Aerospace Engineering, 2022
A strapdown seeker with limited field-of-view (FOV) can simplify and decrease cost of the guidance system for a munition. However, the inherent defect of the strapdown seeker is that it could not provide the necessary line-of-sight (LOS) angular ...
Peng Wang, Jun-fang Fan, Shi-wei Chen, Hai-sen Wang, Wei Wang   +4 more
doaj   +1 more source

Optimum projection angle for attaining maximum distance in a soccer punt kick [PDF]

, 2011
Copyright @ Journal of Sports Science and Medicine 2011.This article has been made available through the Brunel Open Access Publishing Fund.To produce the greatest horizontal distance in a punt kick the ball must be projected at an appropriate angle ...
Linthorne, NP, Patel, DS
core   +3 more sources

Variable angle electron-impact excitation of nitromethane [PDF]

The Journal of Chemical Physics, 1980
The electron-impact excitation of nitromethane has been studied at incident electron energies of 25, 55, and 90 eV, at scattering angles from 6° to 80°. The lowest-lying inelastic process which is observed is a previously unreported feature with a maximum intensity at 3.8 eV energy loss.
Flicker, Wayne M., Mosher, Oren A., Kuppermann, Aron   +2 more
openaire   +2 more sources

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

Variation in multiring basic structures as a function of impact angle [PDF]

Previous studies have demonstrated that the impact process in the laboratory varies as a function of impact angle. This variation is attributed to changes in energy partitioning and projectile failure during the impact and, in simple craters, produces a ...
Schultz, P. H., Wichman, R. W.
core   +1 more source

A global fit to determine the pseudoscalar mixing angle and the gluonium content of the eta' meson

, 2009
We update the values of the eta-eta' mixing angle and of the eta' gluonium content by fitting our measurement R_phi = BR(phi to eta' gamma)/ BR(phi to eta gamma) together with several vector meson radiative decays to pseudoscalars (V to P gamma ...
A Antonelli, A Denig, A Passeri, A. De Santis, A. Di Domenico, B Sciascia, B. Di Micco, B. Di Micco, C Bini, C Bloise, C Gatti, C. Di Donato, C.E. Thomas, E Graziani, E Pasqualucci, E. De Lucia, F Ambrosino, F Archilli, F Bossi, F Ceradini, F Murtas, F Nguyen, G Bencivenni, G Capon, G Felici, G Lanfranchi, G Venanzoni, G Xu, G. De Zorzi, J Lee-Franzini, KLOE collaboration, L Tortora, M Antonelli, M Dreucci, M Jacewicz, M Martini, M Moulson, M Napolitano, M Palutan, M Testa, P Beltrame, P Branchini, P Ciambrone, P Franzini, P Gauzzi, P Massarotti, P Santangelo, P Valente, P. De Simone, R Versaci, R. Escribano, S Bertolucci, S Bocchetta, S Fiore, S Giovannella, S Meola, S Miscetti, S Müller, T Capussela, T Spadaro, T. Feldmann, V Patera, W.-M. Yao .   +62 more
core   +1 more source

Structure–Function Decoupling of the Sensorimotor and Default Mode Networks in Black Americans With MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano, Giacomo Boffa, Maria Petracca, Marta Ponzano, Nicole Graziano, Claire Wigley, Claire Riley, Jonathan Howard, Pietro Bontempi, Sylvia Klineova, Fred Lublin, Matilde Inglese   +11 more
wiley   +1 more source

Study on deformation and failure law of bolt-mesh support roadway under roof impact load

Meikuang Anquan
In order to study the deformation and failure law of bolt-mesh support roadway under roof impact load, taking 250104 transport roadway of Huating Coal Mine as background, FLAC3D was used to analyze the variation characteristics of stress, deformation and
Hongfei YANG, Zhibin LIN, Dafang YANG
doaj   +1 more source